code: def __init__(self, element_type, shape, is_row_vector, block_size):
      self.element_type = element_type
      self.shape = shape
      self.is_row_vector = is_row_vector
      self.block_size = block_size
  
file_path: hail/hail/python/hail/expr/blockmatrix_type.py
imports: import pprint
  from hail.typecheck import typecheck_method, sequenceof
  from hail.utils.java import jiterable_to_list
  from hail.expr.types import dtype, hail_type
label_desc: Use image node_id 3 to create a new tblockmatrix object from inherited base classes: object with example: obj = tblockmatrix(element_type, shape, is_row_vector, block_size)